Captain Russell Mitchell with Yosemite Fire scrambles down a hill next to Highway 120 during a managed burn in the southwestern corner of California's Yosemite National Park on Tuesday, August 27, 2013.

Captain Russell Mitchell with Yosemite Fire scrambles down a hill next to Highway 120 during a managed burn in the southwestern corner of California's Yosemite National Park on Tuesday, August 27, 2013. (Don Bartletti / MCT)

A huge smoke cloud rises over Tuolumne County, California, on Tuesday, August 27, 2013, as the Rim fire continues to rage in the Yosemite area. The fire has charred a swath of nearly 161,000 acres -- including about 21,000 acres inside the park.

A huge smoke cloud rises over Tuolumne County, California, on Tuesday, August 27, 2013, as the Rim fire continues to rage in the Yosemite area. The fire has charred a swath of nearly 161,000 acres -- including about 21,000 acres inside the park. (Barbara Davidson / MCT)

Japanese tourist Seigi Miyazato looks at a huge smoke cloud as it rises over Tuolumne County, California, on Tuesday, August 27, 2013, as the Rim fire continues to rage in the Yosemite area. The fire has charred a swath of nearly 161,000 acres -- including about 21,000 acres inside the park.

Japanese tourist Seigi Miyazato looks at a huge smoke cloud as it rises over Tuolumne County, California, on Tuesday, August 27, 2013, as the Rim fire continues to rage in the Yosemite area. The fire has charred a swath of nearly 161,000 acres -- including about 21,000 acres inside the park. (Barbara Davidson / MCT)

CaptionHose supplies are stockpiled at the Rim Fire camp near Buck Meadows, California

MAX WHITTAKER / REUTERS

Hose supplies are stockpiled at the Rim Fire camp near Buck Meadows, California, August 26, 2013. The fire has burned 160,980 acres on the northwest side of Yosemite National Park.

Hose supplies are stockpiled at the Rim Fire camp near Buck Meadows, California, August 26, 2013. The fire has burned 160,980 acres on the northwest side of Yosemite National Park. (MAX WHITTAKER / REUTERS)